| G. and a. Plumbing Services Limited | Construction | 1999 |
| G. F. Smith & SON Holdings Limited | Financial services | 2019 |
| G. P. Pearson Joinery Limited | Construction | 2012 |
| G. TAM. Consulting UK Limited | Professional & scientific | 2026 |
| G.E. Corporation Ltd | Construction | 2022 |
| G.F.Smith & Son(London),Limited | Manufacturing | 1951 |
| G.G.S. GAS Services Limited | Construction | 2008 |
| G.Hammer Limited | Transport & logistics | 2023 |
| G.O. Records (Hull) Limited | Wholesale & retail | 2003 |
| G.R Car Sales Ltd | Extraterritorial | 2025 |
| G.R.P. Composites Ltd | Manufacturing | 2024 |
| G.R.P. Supplies Ltd | Wholesale & retail | 2024 |
| G.Skinkis Ltd | Transport & logistics | 2018 |
| G5 Autos Limited | Wholesale & retail | 2014 |
| GA Macdonald Offshore Services Limited | Professional & scientific | 2026 |
| GA Properties Hull Ltd | Real estate | 2024 |
| GA Travel Ltd | Administrative & support | 2025 |
| Gabbitas Gill Partnership Limited | Construction | 1995 |
| Gablecraft Holdings Ltd | Manufacturing | 2014 |
| Gablecraft Limited | Manufacturing | 2005 |
| Gabmatec Limited | Administrative & support | 2025 |
| Gadgie Burger Limited | Wholesale & retail | 2017 |
| Gadgiefoods Limited | Hospitality | 2025 |
| Gagan Media Ltd | Administrative & support | 2014 |
| Gairloch Homes Ltd | Real estate | 2023 |
| Gala Joinery Ltd | Construction | 2026 |
| Galactic Aero Services Ltd | Transport & logistics | 2025 |
| Galactic ESG Ltd | Information & communication | 2024 |
| Galaxy Haulage Ltd | Transport & logistics | 2013 |
| Galaxy Motion Ltd | Information & communication | 2024 |
| Galaxy Takeaway Ltd | Hospitality | 2016 |
| Galegate Group Ltd | Financial services | 2025 |
| Gallagher Engineering (Hull) Limited | Manufacturing | 1997 |
| Gallaweld Limited | Professional & scientific | 2016 |
| Gallgood Limited | Other services | 2015 |
| Gamahr (UK) Limited | Manufacturing | 2024 |
| Game Exchange Ltd | Wholesale & retail | 2018 |
| Game of Phones Ltd | Wholesale & retail | 2022 |
| GAMEPLAN247 Consultancy Ltd | Professional & scientific | 2024 |
| Games YOU Make Ltd | Professional & scientific | 2025 |
| Gamesbite Ltd | Wholesale & retail | 2007 |
| Ganstead Park Golf Club Limited | Arts & recreation | 2017 |
| Garage Door & Gate Company (Hull) Limited | Construction | 2001 |
| Gardek Ltd | Manufacturing | 2025 |
| Garden Oasis Design Ltd | Construction | 2024 |
| Garden Services and Landscaping Yorkshire Ltd | Construction | 2023 |
| Garden Sleepers Limited | Wholesale & retail | 2020 |
| Garden TOOLS4EVERYONE Ltd | Other services | 2025 |
| Garden Village Maintenance Ltd | Construction | 2025 |
| Garden Village Shopping Centre (Hull) Limited | Real estate | 2018 |
| Gardham Properties Limited | Real estate | 2003 |
| Gareth Owen Plumbing & Heating Limited | Construction | 2022 |
| Garness Group Limited | Construction | 1993 |
| Garness Jones (Commercial) Limited | Construction | 2020 |
| Garrow Holdings Ltd | Professional & scientific | 2021 |
| Garry Brindley Offshore Lifting Services Ltd | Administrative & support | 2018 |
| Garthlee Limited | Arts & recreation | 2018 |
| Garthwest Limited | Manufacturing | 1964 |
| Garton Homes Limited | Construction | 2021 |
| Gary Ward Communications Ltd | Professional & scientific | 2009 |
| Garyparkin Ltd | Real estate | 2016 |
| Garystephenperkins Ltd | Administrative & support | 2025 |
| GAS Appliance Solutions Limited | Other services | 2017 |
| GAS Gear Limited | Administrative & support | 2005 |
| GAS Plumbing Solutions (Hull) Limited | Construction | 2016 |
| GAS Works (Hull) Limited | Construction | 2016 |
| Gascoigne Court Management Ltd | Real estate | 1997 |
| Gastech Heating Solutions Ltd | Construction | 2026 |
| Gateway Advisers (Accountancy) Limited | Professional & scientific | 2023 |
| Gateway Chassis Solutions Limited | Manufacturing | 2007 |
| Gateway Fabrications Limited | Manufacturing | 2008 |
| Gateway Interactive Ltd | Information & communication | 2013 |
| Gateway Modular Limited | Manufacturing | 2024 |
| GB Athletic Limited | Wholesale & retail | 2022 |
| GB Elec Serv Ltd | Professional & scientific | 2026 |
| GB Flowers Limited | Wholesale & retail | 2003 |
| GB Hull Hand Car Wash Ltd | Administrative & support | 2026 |
| GBE Connect Ltd | Information & communication | 2020 |
| GBH Beads Limited | Manufacturing | 2025 |
| Gcgf Events Ltd | Administrative & support | 2017 |
| Gcms Facility Management Ltd | Energy | 2020 |
| GCR Healthcare Services Limited | Health & social care | 2025 |
| Gcsl Group Limited | Financial services | 2020 |
| Gctlm Property Ltd | Real estate | 2025 |
| GD Construction Services Limited | Construction | 2003 |
| GDM Autopaint Limited | Wholesale & retail | 2018 |
| GDN Plus Ltd | Real estate | 2025 |
| Gdooleyconstruction Ltd | Construction | 2017 |
| GDP Compliance Ltd | Manufacturing | 2017 |
| GDT Property Development Ltd | Real estate | 2024 |
| GDW Property Holdings Limited | Real estate | 2024 |
| GE Awards Limited | Manufacturing | 2021 |
| GE Sportswear Limited | Wholesale & retail | 2024 |
| Gecko Property Ltd | Real estate | 2013 |
| GEE Build Ltd | Construction | 2022 |
| Geeska Freedom Centre (GFC) C.I.C. | Information & communication | 2025 |
| Geezer's Grill Limited | Hospitality | 2017 |
| Geiva Ltd | Wholesale & retail | 2025 |
| Gellers Transport Ltd | Transport & logistics | 2018 |
| GEM Automatic Door Services Ltd | Construction | 2017 |